| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i [verb] [modal v] [be] | 231 |
|
| 2 | [pron] [verb] could [be] | 73 |
|
| 3 | [pers pn] [verb] could [be] | 54 |
|
| 4 | i [verb] could [be] | 12 |
|
